As it should be. Now, to have trained school personnel, and not just deputies, enabled to access the tools.
THIS. The rifle in the safe won’t do any good if it stays locked in the safe or no one is trained to use it effectively.
In the time it takes to open a safe five or six children could be shot. Florida does it right. Teachers and staff are allowed to bear arms school and there are signs on the school door to that effect. These schools will never experience gunfire. School shooters may be suicidal but they want to kill a bunch of folks before they accomplish their own demise. Otherwise they just go out and shoot at a cop on the street.
Protecting a school with a uniformed police officer is just a notice of who to shoot first. Kill the officer then have at it with the students and teachers. If the whole staff might be armed, that alters the prospects and the suicidal shooter heads for a gun-free zone. He needs to kill a lot of other people as revenge for his own mental malady.